Lesser Celandine (Ranunculus ficaria) on Feb 28, 2021
Submitter does not have a specimen EDRR Status: Population assessed
Description of specimen
For small patches, plants can be dug up in their entirety (be sure to get all roots and the small bulbils that break off to form new plants - you may need to sift through your soil to get these). Do not compost or put in your yard debris bin any below-ground parts of the plant (tubers and bulbils) as they can be spread this way. The leaves and flowers are ok to compost or put in yard debris. For larger patches, digging is impractical and can cause a lot of disturbance; herbicide application may have more success.
* Lesser Celandine: National Park Service fact sheet
*Lesser Celandine info from West Multnomah SWCD
While walking the walking path along Old River Road on the banks of the Willamette River, I discovered a relatively large population of lesser celandrine, Ficaria verna, growing on the east side of the road at approximately 17075 Old River Road. It's in bloom now. I also found an extensive population on Glenmorrie Drive, so I will submit another form to pinpoint this location.
Samuel Leininger Clackamas Soil and Water Conservation District 4-County Cooperative Weed Management Area Columbia Gorge Cooperative Weed Management Area